<?php
namespace Opencart\Catalog\Controller\Api;
class Voucher extends \Opencart\System\Engine\Controller {
	public function index(): void {
		$this->load->language('api/voucher');

		// Delete past voucher in case there is an error
		unset($this->session->data['voucher']);

		$json = [];

		if (isset($this->request->post['voucher'])) {
			$voucher = (string)$this->request->post['voucher'];
		} else {
			$voucher = '';
		}

		$this->load->model('extension/opencart/total/voucher');

		$voucher_info = $this->model_extension_opencart_total_voucher->getVoucher($voucher);

		if (!$voucher_info) {
			$json['error'] = $this->language->get('error_voucher');
		}

		if (!$json) {
			$this->session->data['voucher'] = $this->request->post['voucher'];

			$json['success'] = $this->language->get('text_success');
		}

		$this->response->addHeader('Content-Type: application/json');
		$this->response->setOutput(json_encode($json));
	}

	public function add(): void {
		$this->load->language('api/voucher');

		$json = [];

		// Add keys for missing post vars
		$keys = [
			'from_name',
			'from_email',
			'to_name',
			'to_email',
			'voucher_theme_id',
			'message',
			'amount'
		];

		foreach ($keys as $key) {
			if (!isset($this->request->post[$key])) {
				$this->request->post[$key] = '';
			}
		}

		if (isset($this->request->post['voucher'])) {
			$this->session->data['vouchers'] = [];

			foreach ($this->request->post['voucher'] as $voucher) {
				if (isset($voucher['code']) && isset($voucher['to_name']) && isset($voucher['to_email']) && isset($voucher['from_name']) && isset($voucher['from_email']) && isset($voucher['voucher_theme_id']) && isset($voucher['message']) && isset($voucher['amount'])) {
					$this->session->data['vouchers'][$voucher['code']] = [
						'code'             => $voucher['code'],
						'description'      => sprintf($this->language->get('text_for'), $this->currency->format($this->currency->convert($voucher['amount'], $this->session->data['currency'], $this->config->get('config_currency')), $this->session->data['currency']), $voucher['to_name']),
						'to_name'          => $voucher['to_name'],
						'to_email'         => $voucher['to_email'],
						'from_name'        => $voucher['from_name'],
						'from_email'       => $voucher['from_email'],
						'voucher_theme_id' => $voucher['voucher_theme_id'],
						'message'          => $voucher['message'],
						'amount'           => $this->currency->convert($voucher['amount'], $this->session->data['currency'], $this->config->get('config_currency'))
					];
				}
			}

			$json['success'] = $this->language->get('text_cart');

			unset($this->session->data['shipping_method']);
			unset($this->session->data['shipping_methods']);
			unset($this->session->data['payment_method']);
			unset($this->session->data['payment_methods']);
		} else {
			// Add a new voucher if set
			if ((utf8_strlen($this->request->post['from_name']) < 1) || (utf8_strlen($this->request->post['from_name']) > 64)) {
				$json['error']['from_name'] = $this->language->get('error_from_name');
			}

			if ((utf8_strlen($this->request->post['from_email']) > 96) || !filter_var($this->request->post['from_email'], FILTER_VALIDATE_EMAIL)) {
				$json['error']['from_email'] = $this->language->get('error_email');
			}

			if ((utf8_strlen($this->request->post['to_name']) < 1) || (utf8_strlen($this->request->post['to_name']) > 64)) {
				$json['error']['to_name'] = $this->language->get('error_to_name');
			}

			if ((utf8_strlen($this->request->post['to_email']) > 96) || !filter_var($this->request->post['to_email'], FILTER_VALIDATE_EMAIL)) {
				$json['error']['to_email'] = $this->language->get('error_email');
			}

			if (($this->request->post['amount'] < $this->config->get('config_voucher_min')) || ($this->request->post['amount'] > $this->config->get('config_voucher_max'))) {
				$json['error']['amount'] = sprintf($this->language->get('error_amount'), $this->currency->format($this->config->get('config_voucher_min'), $this->session->data['currency']), $this->currency->format($this->config->get('config_voucher_max'), $this->session->data['currency']));
			}

			if (!$json) {
				$code = token();

				$this->session->data['vouchers'][$code] = [
					'code'             => $code,
					'description'      => sprintf($this->language->get('text_for'), $this->currency->format($this->currency->convert($this->request->post['amount'], $this->session->data['currency'], $this->config->get('config_currency')), $this->session->data['currency']), $this->request->post['to_name']),
					'to_name'          => $this->request->post['to_name'],
					'to_email'         => $this->request->post['to_email'],
					'from_name'        => $this->request->post['from_name'],
					'from_email'       => $this->request->post['from_email'],
					'voucher_theme_id' => $this->request->post['voucher_theme_id'],
					'message'          => $this->request->post['message'],
					'amount'           => $this->currency->convert($this->request->post['amount'], $this->session->data['currency'], $this->config->get('config_currency'))
				];

				$json['success'] = $this->language->get('text_cart');

				unset($this->session->data['shipping_method']);
				unset($this->session->data['shipping_methods']);
				unset($this->session->data['payment_method']);
				unset($this->session->data['payment_methods']);
			}
		}

		$this->response->addHeader('Content-Type: application/json');
		$this->response->setOutput(json_encode($json));
	}
}
